But then, some Vietnamese soldiers attack them and Co is killed.
He said interviews with former Vietnamese soldiers and others have helped provided conclusive evidence that these people died.
Suddenly a group of wounded Vietnamese soldiers appear and gun him down.
A good Vietnamese soldier would have killed him by now.
The groups even assert that some of the remains might belong to Vietnamese soldiers or animals.
A Vietnamese soldier opened fire and shot the guy through the eye.
A force of around 1,000 Vietnamese soldiers attempted to counterattack.
Nobody knows how many Vietnamese soldiers are missing from the war.
Three Vietnamese soldiers were killed and two others were injured.
Of the 50,000 or so Vietnamese soldiers thought to be involved, there were an estimated 4,800 to 8,000 killed and another 9,000-15,000 wounded.